In addition to mixed responses of consumers reluctant to accept technical protection measures without direct consumer benefit, the interoperability problems of existing DRM solutions lead to a supply side fragmentation of the market which prevent their adoption. The EU-Council wants consultations.

Council Conclusions on the development of legal offers of online cultural and creative content and the prevention and combating of piracy in the digital environment
2905th EDUCATION, YOUTH AID CULTURE Council meeting
Brussels, 20 November 2008

Most commentators focused on the aspects related to the controversial three-strikes proposal of the French presidency which currently lacks backing from the European Parliament. The final conclusions from the Council resolution show where the national ministers want the European level to take action:

INVITES THE PARTIES CONCERNED to launch consultations or to join them, in a constructive spirit, with a view to
– finding concrete, effective and fair solutions promoting the development of legal online offer and the prevention and combating of piracy;
– promoting the interoperability and ensuring the transparency of technical measures to manage and protect rights."

The Council did not address legal interoperability problems but only technical measures. However, you can expect interoperability of licensing conditions to be a major building block in the "development of legal online offer".